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Hawking radiation from an analogue bouncing geometry

Alberto García Martín-Caro1,*, Gerardo García-Moreno2,†, Javier Olmedo3,‡, and Jose M. Sánchez Velázquez4,§

  • 1Departamento de Física de Partículas, Universidad de Santiago de Compostela and Instituto Galego de Física de Altas Enerxias (IGFAE), E-15782 Santiago de Compostela, Spain
  • 2Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía, 18008 Granada, Spain
  • 3Departamento de Física Teórica y del Cosmos, Universidad de Granada, Granada-18071, Spain
  • 4Instituto de Física Teórica UAM/CSIC, c/ Nicolás Cabrera 13-15, Cantoblanco, 28049 Madrid, Spain

  • *alberto.martin-caro@usc.es
  • †ggarcia@iaa.es
  • ‡javolmedo@ugr.es
  • §jm.sanchez.velazquez@csic.es

Phys. Rev. D 108, L061701 – Published 5 September, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.L061701

Abstract

We propose a setting that simulates Hawking radiation from an analogue bouncing geometry, i.e., a collapsing geometry that reverts its collapse after a finite time, in a setup consisting of a coplanar waveguide terminated in superconducting quantum-interference devices at both ends. We demonstrate experimental feasibility of the proposed setup within the current technology. Our analysis illustrates the resilience of Hawking radiation under changes in the physics at energy scales much larger than the temperature, supporting the idea that regular alternatives to black holes would also emit Hawking radiation.

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